Quoter
Quoter Class Reference
The ReadQuoter
class provides a read-only interface to the Uniswap V4 Quoter contract for getting price quotes without executing transactions.
Constructor
new ReadQuoter(quoteV4Address: Address, drift: Drift<ReadAdapter>)
Parameters:
quoteV4Address
- Contract address of the V4 Quoterdrift
- Drift instance for blockchain interaction (defaults to new instance)
Methods
quoteExactInputV4
Get a price quote for swapping an exact amount of input tokens.
async quoteExactInputV4(
params: FunctionArgs<V4QuoterABI, 'quoteExactInputSingle'>['params']
): Promise<FunctionReturn<V4QuoterABI, 'quoteExactInputSingle'>>
Parameters:
params
- Arguments for the quoteExactInputSingle contract method
Returns: Promise resolving to raw contract return values
quoteExactOutputV4
Get a price quote for receiving an exact amount of output tokens.
async quoteExactOutputV4(
params: FunctionArgs<V4QuoterABI, 'quoteExactOutputSingle'>['params']
): Promise<FunctionReturn<V4QuoterABI, 'quoteExactOutputSingle'>>
Parameters:
params
- Arguments for the quoteExactOutputSingle contract method
Returns: Promise resolving to raw contract return values
Example Usage
import { ReadQuoter } from "doppler-v4-sdk";
// Create quoter instance
const quoter = new ReadQuoter("0x...");
// Get quote for exact input
const inputQuote = await quoter.quoteExactInputV4({
tokenIn: "0x...",
tokenOut: "0x...",
amountIn: 1000000n,
fee: 3000,
sqrtPriceLimitX96: 0n,
});
// Get quote for exact output
const outputQuote = await quoter.quoteExactOutputV4({
tokenIn: "0x...",
tokenOut: "0x...",
amountOut: 1000000n,
fee: 3000,
sqrtPriceLimitX96: 0n,
});
Key Features
Price Quotes: Get accurate price quotes for both exact input and output swaps
No Gas Required: Simulate swap outcomes without executing transactions
V4 Compatible: Designed specifically for Uniswap V4 pools
Type Safety: Full TypeScript support with proper type definitions
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